Darryl Keil Last Activity 2025-09-09 11:09 AM
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Richard

 
Subject : honeycomb panel/foamcore
Posted : 2004-03-30 4:12 PM
Post #31399
I have a rather large table that a client is asking me to build. It calls for several 2" thick panels with some cantilevered spans and weight bearing joinery. I usually work in MDF, but I am certain that the weight would be a problem, so I am considering honeycomb panels or one of these foamcore products. I have several questions, if some kind soul could pass on some info....Where can I buy this material? Does it run in 4x8 sheets or are there variables? What thicknesses are common? Should I plan to veneer 1/4 MDF and then skin the honeycomb with that? What adhesives should I use? Are there any special joinery or fastening considerations? Thank you so much for your advice!!


 
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Darryl Keil

Posts: 1455

Joined: 2003-05-22
Location: Maine

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Subject : RE: honeycomb panel/foamcore
Posted : 2004-04-01 6:15 AM
Post #31405 - In reply to #31399
Richard,

I'm not familiar with the foam core products, and I'm not sure it's the right choice for your application. I am familiar with the resin impregnated honeycomb, and we do carry it. It comes in 2'x4' sheets, 1/2", 3/4" and 1" thickness. At least that's what we carry. The size of the sheet really doesn't matter, because you just fill up the general area and butt the sheets together. As far as glue goes, you really want a rigid one like urea resin and I would not go less than one quarter inch on your skins. You can veneer the skins before you press it to the honeycomb or afterwards, I usually veneer afterwards. In areas where you want to screw to the table I just cut out the honeycomb and drop in small blocks of wood.

That's the basics.

Sincerely
Darryl Keil


 
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Brian Gray

Posts: 339

Joined: 2004-01-21
Location: Sandusky, OH

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Subject : RE: honeycomb panel/foamcore
Posted : 2004-04-01 9:58 AM
Post #31407 - In reply to #31405
Im also interested in this product....

What complications can you run into when you put this stuff in a vacuum press?

thanks in advance.


 
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Darryl Keil

Posts: 1455

Joined: 2003-05-22
Location: Maine

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Subject : RE: honeycomb panel/foamcore
Posted : 2004-04-02 1:42 PM
Post #31411 - In reply to #31407
Brian,

The main thing you have to consider with a vacuum press is not crushing honeycomb. If you press honeycomb at full vacuum pressure it will look fine at first, but when you come back half an hour later the whole center area will be dished out. To remedy this, you turn the pressure down to about 10 to 15HG. Once it's all pressed up to the skins and dry, then you can turn the pressure back up to full vacuum for the veneering phase.

Sincerely.
Darryl Keil


 
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Brian Gray

Posts: 339

Joined: 2004-01-21
Location: Sandusky, OH

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Subject : RE: honeycomb panel/foamcore
Posted : 2004-04-02 4:49 PM
Post #31412 - In reply to #31411
Thanks again, Darryl.
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